GC-MS analysis of liposoluble components from Compound Tibetan medicine Dangzuo Chemical costituents in volatile oil from white chrysanthemum in Jining with GC-MS analysis Study on preparation of tricin reference substance by semi-preparative HPLC in Bambusae Caulis in Taenias Study on preparation of tricin reference substance by semi-preparative HPLC in Bambusae Caulis in Taenias In vivo metabolic pathway of liquiritin in rats GC-MS analysis of liposoluble components from Compound Tibetan medicine Dangzuo